Skip to main content ↑ ↓
Topic: 6.5's in Rear Quarters?? (Read 3081 times) previous topic - next topic

6.5's in Rear Quarters??

anyone have photo's of 6.5's in the rear quarter arm rest panel??

Id like to see where they are placed....

6.5's in Rear Quarters??

Reply #1 –
after looking more closely at the rear quarter trim panels, they seem to be to flimsy to hold a heavy speaker... some type of mod will be needed and I don't want to get involved into that right now... so... I'm canceling the idea....

6.5's in Rear Quarters??

Reply #2 –
My question would be - why? My car sounds many times better now that I only have a front sound stage than when I had 6x9's in the rear deck also. Right now, this is also with some pretty py speakers (Infinity Kappas) since my door ones both destroyed their voice coils when the car sat for a year. Just removing the rears made detail improve dramatically when using some dedicated tweeters and Aurum Cantus 7" speakers for the midrange/midbass.

Installing more speakers will just get you more cancellation, plus I'm not sure either the stock radio or aftermarket without an amp can take running them in parallel - in series you're losing half the power output. You won't gain any volume.
1988 Thunderbird Sport

6.5's in Rear Quarters??

Reply #3 –
with my head unit, it is benifical to have more speakers. My head unit is ultra high end and has time delays and seating positions that can be programed to take advantage of having lots of speakers... My head unit alone, cost as much as most people put into thier entire system. Also like the rest of my stereo equipment, which is high end.. there would be a difference.... and with my amps, the power would be doubled...

but going thru the hassel of modding up some sort of speaker bracket behind the quarter trim is not something I want to tackle right now...

go to a High End stereo shop and listen to a WELL designed system that is in the 5,000-10,000 dollar range, you won't believe the incredible sound... and that's not expensive in todays stereo equipment market... At the SEMA Show, there was a Stereo booth set up with a demo car that had a $150,000 steroo in it.... now that's insane!!


then I guess the argument would be why spend that much money on stereo equipment... cause you can..;)

6.5's in Rear Quarters??

Reply #4 –
I bought My pioneer CD player head unit  at a yard sale for $1:mullet:
Fox-less at the moment

6.5's in Rear Quarters??

Reply #5 –
Quote from: no911forme;334375
in the 5,000-10,000 dollar range, you won't believe the incredible sound... and that's not expensive


Are you sure about that?  I guess its all about whats important to you.  Give me $5k and my stereo wont change much, maybe some new speakers to go with the stock head unit.  LOL.  It would have a hell of a drivetrain and nice paint though. :evilgrin::evilgrin::evilgrin:
Mike

6.5's in Rear Quarters??

Reply #6 –
Wow, umm...perfect stereo sound quality would come from a point source from 2 channels that can reproduce audio exactly as it was recorded. More than 2 channel audio will NEVER sound better with more than two full-range channels.

It is NEVER more beneficial to add more speakers, except to add power handling capabilities to the entire setup (more voice coils to dissipate heat and more cone area for louder frequencies across the full range). While everyone has their own tastes in what their speakers sound like, you can buy a very nice pair of midbass woofers, a midrange for a good 3-way setup if running through a carpc, and a pair of tweeters for $1500 that will give you sound quality as good as anything (I'm partial to Seas equipment now), car or cabinet. Subs are far less picky but a good single sub can keep up with decent efficiency full range speakers being powered by 300-400 Watts per channel.

Lastly, no "highend" headunit has any decent control built in, or any fancy screens (ideally, if you have to have a screen in the same unit/power supply as the audio processing, it would turn off after a few seconds). Middle of the road equipment ($500 price point) has these and they work but lack the finest detail that the multi-thousand dollar units will give you. For a home environment or a car with the engine off, studio-level equipment and these highest of headunits work but when going down the road, middle of the pack is fine and it is difficult to hear a difference when you get beyond $200 DAC's.

Anyways, if you have amps that can handle the speakers in parallel, the amp will increase in power output but very rarely can an amp actually output a clean signal at twice the power output (same power going to each speaker as if they were connected by themselves though). Only an oscilloscope will tell you if the raw power coming out of the amp is fine, but this doesn't help with the the minute differences in detail that will occur when the amp is powering additional voice coils which each react differently to power being fed to them, how the resistances change, even in the same make/model of speaker. Don't forget about the additional cancellation that you WILL face when adding additional speakers, even with all the audio processing you can throw into the equipment. Again, doesn't matter as much if there's other noise and vibrations in the listening environment.

So anyways, if you think you know it all, please just state the basis for your claims - this is all I ask. Me, I'm far from an expert imo but have many years of experience with tweaking all these things, including with the proper tools to measure the actual electricity being sent every direction from the source to the speaker terminals. By years of experience, I've spent well over a thousand hours in tweaking alone, plus likely another couple thousand in reading a huge variety of opinions on different audio topics, and several hundred listening to different equipment to pick out what I like. An example of such is that I used to love the sound of my top-model Sennheiser headphones, they got better with a beefy amp and higher quality source feeding them but currently my 2 channel pc setup outperforms the headphones in every aspect and I have a hard time using any headphones at home now. When I get into such a topic, I end up spending hours every day, for months to years figuring out exactly what I want and how different things affect the item that's being learned. All my experiences have been within the car environment (2.1 with processing from a headunit), home theater (3.1 with external DAC and processing from htpc), computer audio setup (2.0 with external DAC and processing from pc), and a professional recording studio (more equipment than can name, most of which is older, well built equipment). Currently my car setup sucks (no detail) and is brighter than anything else I own (ear piercing on a few songs, all wave or flac encoded) but I will not install my good equipment back into the car until I know the car can park in a garage every night.
1988 Thunderbird Sport

6.5's in Rear Quarters??

Reply #7 –
ok.. sounds like you know about sound quailty... what's in your ride? what is the equipment you have actual experence with in a Fox Body...?

I dont claim to be a know it all... all I want my music to sound like your at the concert live, front row, ROCK'n... right by the speakers on stage..

6.5's in Rear Quarters??

Reply #8 –
Right now, I'm on a downgraded setup as the car is never driven and my Aurum Cantus mids both quit working awhile ago when the car sat.

Equipment installed today:
Source - Pioneer 780MP deck (from 960MP - this unit had active crossovers like the 880prs)
Full range amp - Alpine PDX 4.150 amp
Sub amp - Eclipse XA1000 amp (have PDX 1.1000 for future install)
Current Speakers - Some 4ohm generation 6" coaxial Kappas in doors - mediocre sound quality but bearable for occasional use
Previous speakers - Aurum Cantus AC-180F1 mids, Seas Excel T25CF-002 tweeters
Subs - TC Sounds TC-7 10" mounted infinite baffle behind rear seat

Future plans:
Source - Carpc that I have waiting for installation. SSD and HDD, E8400 cpu, 4GB ram, gps, hd radio, maudio fast track ultra USB DAC using ASIO drivers, AudioMulch VST processing, touchscreen, etc

Speakers - Currently have some Seas W18E-001 mids on hand but may go with some NX's for their higher crossover capabilities before cone breakup and weather protection. Install Seas Excel T25CF-002 tweeters again. Speakers in the future will be built into sealed cabinets in the doors as the sound was still lacking with sound deadened doors (5 layers of mass and 2 1/2 layers of barrier in each door). There is no room for kickpanel speakers since we have foot parking brakes.

Subs - maybe someday go to more efficient 12" subs, mounted IB but current ones still overwhelmed the 150W AC/Seas combination

Amps - install the PDX amp since it's more powerful but the same size as my current amp

---

Of course this is all powered by a 3G alternator, 1/0 hyperflex wire, no ground loops, proper wiring channels going down the sides of the car, and currently, STOCK speaker wires from the trunk to front. I set my amps' gain for their capable power output at 12.8v at 75% of my max volume level and then turn each channel down within the head unit as necessary.

I've had many pieces of equipment in the car, progressively getting better over the years. I've had other JL, MTX, Orion, and I think a couple other amps in there, along with speakers ranging from Eclipse, infinity, jl, mbquart, and other 3.5" dash speakers, 5 1/4",  6", and 7" door speakers, 5x7, 6x8, and 6x9 rear speakers and a ported 12" and sealed 10" sub setups. It's been over years though so I'd have to dig through pictures to remember it all. I've also been through rewiring the car a few times to work out power requirements and grounds. The rear deck is good for bass from smaller speakers but that's about it (and subs should work but I haven't mounted subs there).

I agree about the "live" but I prefer live that's not like being at a concert, standing 10 feet in front of the speakers. I go for a more neutral sound wish acoustics as if I were a few feet in front of the actual band. I'm not a fan of a lot of rock (it's all colored by design) but the good setup can get plenty loud enough to hurt without distorting in any frequencies. The Kappas - not so much. They're just painful and sloppy.
1988 Thunderbird Sport

6.5's in Rear Quarters??

Reply #9 –
I used to have Soundstream 2ohm 6.5's in the rear quarter arm rests. I had built small square birch wood enclosures to house them and mounted them to the chassis. Then I used two old rectangular Ford Taurus rear deck grills, painted to match the interior, on the trim panel to cover the hole. I wish I had pictures but I sold my blue 1986 Tbird back in 2000. :-(